CN206595987U - A kind of GNSS antenna reception device - Google Patents
A kind of GNSS antenna reception device Download PDFInfo
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- CN206595987U CN206595987U CN201720333854.0U CN201720333854U CN206595987U CN 206595987 U CN206595987 U CN 206595987U CN 201720333854 U CN201720333854 U CN 201720333854U CN 206595987 U CN206595987 U CN 206595987U
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Abstract
The utility model is related to a kind of GNSS antenna reception device.Including the first controller, second controller, GNSS receiver, RF switch, GNSS external antennas, GNSS built-in aerials, antenna feeder and power supply, described first controller output end connection antenna feeder one end and RF switch first input end, the antenna feeder other end and the output end of RF switch first connect GNSS external antennas and GNSS built-in aerials respectively；The GNSS external antennas output end and the GNSS built-in aerials output end connect the input of the second controller by the input of RF switch second, GNSS receiver respectively；The power supply connects the first controller and second controller.The utility model provides a kind of GNSS antenna reception device, pass through free selection switching connection built-in aerial or external antenna under different natural environments, accordingly even when still can guarantee that excellent GNSS positioning performances under weak signal scene, not only design simple, and it is extensive to be applicable scene.
Description
Technical field
The utility model is related to technical field of satellite navigation, and in particular to a kind of GNSS antenna reception device.
Background technology
Satellite navigation system is made up of space constellation part, ground monitoring part and user receiving equipment three parts,
It is widely used in the industry fields such as navigation, aviation, measurement, mapping, precision positioning.
At present, traditional GNSS (GLONASS) reception device generally includes antenna element and GNSS receiver
Two large divisions, it receives GNSS signal by using GNSS built-in aerials, then is supplied to GNSS receiver to carry out GNSS signal
Signal transacting, resolves the information such as out position, speed, time.The built-in aerial of general GNSS receiver is due to being limited to product
Space structure etc. is influenceed, and antenna efficiency is typically all relatively low, in the environment of GNSS signal is blocked by building etc., and GNSS is received
Machine service behaviour drastically declines, so that can not normally position.
Utility model content
The utility model provides a kind of GNSS antenna reception device, solves the problems, such as techniques discussed above.
The scheme that the utility model solves above-mentioned technical problem is as follows：A kind of GNSS antenna reception device, including the first control
Device processed, second controller, GNSS receiver, RF switch, GNSS external antennas, GNSS built-in aerials, antenna feeder and electricity
Source, described first controller output end connection antenna feeder one end and RF switch first input end, antenna feeder are another
End and the output end of RF switch first connect GNSS external antennas and GNSS built-in aerials respectively；The GNSS external antennas output
End and the GNSS built-in aerials output end connect second control by the input of RF switch second, GNSS receiver respectively
The input of device processed；The power supply connects the first controller and second controller.
The beneficial effects of the utility model are：The utility model provides a kind of GNSS antenna reception device, by difference
Natural environment under free selection switching connection GNSS built-in aerials or GNSS external antennas, accordingly even when in weak signal
Still excellent GNSS positioning performances are can guarantee that under scape, not only design simple, and it is extensive to be applicable scene.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the GNSS antenna reception device is comprising built at least one GNSS external antenna and at least one GNSS
Antenna.
Beneficial effect using above-mentioned further scheme is：This is further in technical scheme, GNSS built-in aerials volume compared with
It is small, but it is less efficient, and device design is simple, and GNSS external antenna volumes are larger, and antenna efficiency is high, and apparatus structure is compared with GNSS
Antenna Design is put complicated, by setting GNSS external antennas and GNSS built-in aerials to be cut unrestricted choice under different scenes
Change, improve the applicable scene of device.
Further, the GNSS external antennas of stating is the external active antennas of GNSS, and the GNSS built-in aerials are in GNSS
It is equipped with source antenna.
Beneficial effect using above-mentioned further scheme is：This is further in technical scheme, the GNSS built-in aerials and
GNSS external antennas are active antenna, and active antenna can receive fainter by RF preamplifiers or low-noise amplifier
Signal.
Further, the power supply is dc source.
Beneficial effect using above-mentioned further scheme is：In this further technical scheme, using DC power supplier work(
Consumption is low.
Further, the RF switch is radio frequency converting switch.
Beneficial effect using above-mentioned further scheme is：, can using radio frequency converting switch in this further technical scheme
With free switching selection connection GNSS built-in aerials or GNSS external antennas.
Further, first controller and second controller are integrated in a control unit.
Beneficial effect using above-mentioned further scheme is：In this further technical scheme, by using the first controller
The power supply and the switching of GNSS external antennas and GNSS built-in aerials of GNSS external antennas and GNSS built-in aerials are controlled, is passed through
Second controller receives the signal that GNSS receiver is connect and be sent to from antenna, by the way that two controllers are integrated in into a control
In unit, whole device structure is compacter.
Brief description of the drawings
A kind of GNSS antenna reception device circuit connection diagram that Fig. 1 provides for the utility model embodiment.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.More specifically described by way of example referring to the drawings in the following passage
The utility model.According to following explanation and claims, advantages and features of the present utility model will become apparent from.It should be noted
That accompanying drawing is using very simplified form and uses non-accurately ratio, only to it is convenient, lucidly aid in illustrating this reality
With the purpose of new embodiment.
Fig. 1 is a kind of GNSS antenna reception device circuit connection diagram of the utility model.As shown in figure 1, including first
Controller, second controller, GNSS receiver, RF switch, GNSS external antennas, GNSS built-in aerials, antenna feeder and
Power supply, the first controller output end connection antenna feeder input and RF switch first input end, antenna feeder
Output end and the output end of RF switch first connect GNSS external antennas and GNSS built-in aerials respectively；The GNSS external antennas
Output end and the GNSS built-in aerials output end connect described the by the input of RF switch second, GNSS receiver respectively
The input of two controllers；The power supply connects the first controller and second controller.
Above-described embodiment provide GNSS antenna reception device, the first controller be used for by antenna feeder to GNSS outside
Put antenna or GNSS built-in aerials are powered, the output end of the first controller is by controlling RF switch selection connection GNSS external
Antenna or GNSS built-in aerials, second controller are used for the letter for receiving GNSS external antennas or GNSS built-in aerials feedback
Number, the signal is sent to second controller by RF switch and GNSS receiver.The GNSS antenna that above-described embodiment is provided
Reception device is in the environment in GNSS satellite signal higher-wattage, such as open celestial environment, and controller control RF switch is cut
Active antenna path built in GNSS is changed to, while controlling antenna power feeding module to be powered to active antenna built in GNSS, you can realize
Precise positioning.The environment of the weaker power of GNSS satellite signal is in device, such as high building blocks urban environment, then connection is received
The external active antennas of more efficient GNSS, controller control RF switch is switched to the external active antenna paths of GNSS, simultaneously
Control antenna power feeding module is powered to the external active antennas of GNSS, closes the power supply to GNSS built-in aerials, it is to avoid built-in aerial
Path brings the influence of GNSS signal superposition interference, you can ensures under weak signal environment, can also realize precise positioning.
It is preferred that, in one embodiment of the present utility model, the GNSS antenna reception device includes at least one
GNSS external antennas and at least one GNSS built-in aerial.By setting multiple GNSS built-in aerials and multiple GNSS external antennas
It is that can be switched over, such equipment when GNSS built-in aerials or the damage of GNSS external antennas or plant maintenance
It can continue to run with.
It is preferred that, in one embodiment of the present utility model, the GNSS external antennas of stating is the external active days of GNSS
Line, the GNSS built-in aerials are active antenna built in GNSS, and active antenna uses RF preamplifiers or low-noise amplifier
The signal of reception is amplified.
It is preferred that, in one embodiment of the present utility model, described GNSS antenna is received using dc source and filled
Put and be powered.
It is preferred that, in one embodiment of the present utility model, antenna feeder uses aerial line, and aerial line is line
The most frequently used feed line of antenna is built on stilts two-wire line.Its advantage be it is structurally simple, economical, be lost it is small, have the disadvantage frequency
Easily antenna effect is produced when high.Therefore, long, medium and short ripple, or the ultrashort wave band little for transmission range are mostly used for.
It is preferred that, in one embodiment of the present utility model, antenna feeder uses coaxial cable, and frequency increases
When, the antenna effect of transmission line can be overcome using coaxial cable.Coaxial cable is made up of an inner wire with coaxial outer conductor.
Source voltage is connected on inner wire and outer conductor respectively.Outer conductor is grounded, with shielding action.The inner wire of the coaxial cable is adopted
With copper cash, outer conductor can be litzendraht wire or copper aluminum band pipe crimping, be insulated between the two with high-frequency dielectric (such as polyethylene).Have
Filling, partition, hurricane band, the form such as fish born of the same parents have the advantages that flexibility, easy for installation, impedance are uniform, thus in transimission power
Little occasion is used widely.The inner wire of hard coaxial line is the copper heart, and outer conductor is copper pipe, with the air for drying compression or
Other inert gas (such as nitrogen) fillings, can improve resistance and wear and moisture protection.Inner wire packing ring or hurricane band etc. are supported, and are fitted
It is high-power for transmitting.
It is preferred that, in one embodiment of the present utility model, antenna feeder uses waveguide, when frequency increases again,
Due to kelvin effect, coaxial inner conductor loss increase；Power capacity is reduced, therefore can cancel inner wire, uses hollow waveguide
Pipe transmission energy.Conventional feed waveguide has rectangle and circular two kinds.The electromagnetic wave propagated in the waveguide has no longer been transverse electric
Magnetic wave (abbreviation TEM ripples), but H mode or transverse magnetic wave (abbreviation TE or TM ripple).Compared with coaxial feeder, waveguide it is excellent
Point is that loss is small, power capacity is big, is simple to manufacture；Have the disadvantage easily to produce unwanted wave mode (transmission mode), by critical frequency
Rate is limited, and the required precision processed and installed is higher etc..
It is preferred that, in one embodiment of the present utility model, the RF switch is radio frequency converting switch.The radio frequency
Switching switch is the RF switch controlled with two-way, and the frequency error factor switch power is small, for controlling built-in aerial and outer
Put connecting or disconnecting for antenna.
It is preferred that, in one embodiment of the present utility model, the first controller and second controller are integrated in a control
In unit processed；The first controller output end connection antenna feeder input and RF switch first input end, antenna feed
Electric wire output end and the output end of RF switch first connect GNSS external antennas and GNSS built-in aerials respectively；The GNSS is external
Antenna output end and the GNSS built-in aerials output end connect institute by the input of RF switch second, GNSS receiver respectively
The input of second controller is stated, by the way that two controllers are integrated in a control unit, whole device structure is more stepped up
Gather.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (6)
1. a kind of GNSS antenna reception device, it is characterised in that including the first controller, second controller, GNSS receiver, penetrate
Frequency switch, GNSS external antennas, GNSS built-in aerials, antenna feeder and power supply, first controller output end connect day
Line feed line one end and RF switch first input end, the antenna feeder other end and the output end of RF switch first are connected respectively
GNSS external antennas and GNSS built-in aerials；The GNSS external antennas output end and GNSS built-in aerials output end difference
The input of the second controller is connected by the input of RF switch second, GNSS receiver；The power supply connection first
Controller and second controller.
2. a kind of GNSS antenna reception device according to claim 1, it is characterised in that the GNSS antenna reception device bag
Containing at least one GNSS external antenna and at least one GNSS built-in aerial.
3. a kind of GNSS antenna reception device according to claim 2, it is characterised in that the GNSS external antennas are GNSS
External active antenna, the GNSS built-in aerials are active antenna built in GNSS.
4. according to a kind of any GNSS antenna reception device of claims 1 to 3, it is characterised in that the power supply is direct current
Power supply.
5. a kind of GNSS antenna reception device according to claim 4, it is characterised in that the RF switch is radio frequency switching
Switch.
6. a kind of GNSS antenna reception device according to claim 5, it is characterised in that first controller and the second control
Device processed is integrated in a control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333854.0U CN206595987U (en) | 2017-03-31 | 2017-03-31 | A kind of GNSS antenna reception device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720333854.0U CN206595987U (en) | 2017-03-31 | 2017-03-31 | A kind of GNSS antenna reception device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206595987U true CN206595987U (en) | 2017-10-27 |
Family
ID=60122772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720333854.0U Active CN206595987U (en) | 2017-03-31 | 2017-03-31 | A kind of GNSS antenna reception device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206595987U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361758A (en) * | 2018-04-10 | 2019-10-22 | 成都鼎桥通信技术有限公司 | A kind of method and apparatus of positioning chip selection |
| CN111756427A (en) * | 2020-05-06 | 2020-10-09 | 广州市中海达测绘仪器有限公司 | Multi-card single-standby GNSS receiver intelligent switching device, method, equipment and medium |
-
2017
- 2017-03-31 CN CN201720333854.0U patent/CN206595987U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361758A (en) * | 2018-04-10 | 2019-10-22 | 成都鼎桥通信技术有限公司 | A kind of method and apparatus of positioning chip selection |
| CN110361758B (en) * | 2018-04-10 | 2021-09-03 | 成都鼎桥通信技术有限公司 | Method and device for selecting positioning chip |
| CN111756427A (en) * | 2020-05-06 | 2020-10-09 | 广州市中海达测绘仪器有限公司 | Multi-card single-standby GNSS receiver intelligent switching device, method, equipment and medium |
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